Composition of matter for the removal of paint, varnish, and the like.



- UNITED STATES- iaa me GEORGE ,H. HULL, OF ORANSTON, RHODE ISLAND, ASSIGXOR, BY DIRECT AND MESNE ASSIGNMENTS, TO GHADE TION OF WEST VIRGINIA.

LOID OHEMIOALCOMBANY, ()l'l NEW YORK, N. Y., A CORPORA- COMPOSITION OF MATTER FOR THE REMOVAL 'OF PAINT, VARNISH, AND LIE.

To all whom it may concern:

Be it known that I, GEORGE H. HU L, a citizen of the United States, v residing at Cranston, Providencecounty, State of Rhode Island, have invented certain new and useful Improvements in Compositions of Matter-f or the Removal of Paint, Varnish, and the Like, of which the following is a specification.

'This invention relates. to certain new and useful improvements in compositions of matter for removal of paint, varnish and the like, and it has for its object the production of a composition of this character which .is exceedingly simple and cheap in manufacture, and which when applied to a paint or varnish coated surface will causethe paint or varnish to soften to such a consistency as to readily permit the removal thereof. A

In carrying out my invention I employ the following ingredients combined in the roportions' stated, although the proportions may be varied without departing from the spirit of my invention, to wit Cyanidof otassiuin 1 pound. f

Oxallo' acir 2 pounds. Whiting (commercial calcium carbonate) 3 pounds. Wood alcohol- 1 quart;

Water, substantially pure I; uarts. 'Oil of sassafras i 2 fluid ounces.

- The 'cyanid of potassium is first mixed in one quart of hot water (312 l ahI) until it The oxalic acid is then 2 comes to dissolution.

Specification of Letters Patent. Application filed January 29,1907; Serial No. 354,754.

mixed in twoquarts of hot water (312 l ahi) d until it comes to dissolution.

I gredients have bceirso dissolved to a liquid state, they are poured into a 'csscl and age. tated until both liquids are thoroughly After said in sisteiicy of paste, al'tecwhich this. floating portion of the nistc-niix turo is added to tlic g mixed solutioii'ol cyanid of potassium and oxalic acid. and the whole mixture is then f duce calcium oxalate and a limited quantity i of calcium cyanid. I

In order to ren'iorc the obnoxious odor of Patented Sept' 1', 1908.

the composition a deodorizing agent may be employed. F or this purpose I dissolve the" oil-of Sassafras in the wood alcohol and add the same to the above described mixture.

pletely removing the dirt from said surface and leaving the same clean and fresh. When it is desired to renew the finish of a surface the composition is applied and allowed to remain a short time but is removed just before complete dissolution has taken place, re maining just long enough to allow the varnish to soften and How, whereupon it can be res'pread to cover marks, and the like, When it is desired, to entirelyfi'einovti the paint or varnish and expose the natural surfacle, the preparatioiris applied and allowed to stand agreater length of time, after which the paint or varnish can be scraped or brushed off leaving the surface entirely exposed and in condition to be refinished. l

An essential feature of my improved com-- 5 Wood, metal, or other material to which paintor varnish may have been applied.

l elaini as my invcntibnzl. A composition for the purpose described obtained by mixing cyanid of potas' sium, loxal'ic acid and commercial calciun'rv carbonate, whereby calcium oxalate and'calcium cyauid are produced.

l. A composition for "the purpose described-obiained by mixing cyanid of potassium, oxalic. acid. andcommercial calcium carbonate, whereby calcium oxalate and calcium cyanid are produced, and the subse quent'addition-of alcohol. 4 v

ln testimony whereofl allix my signature in presence of two witnesses.

(l l lt )RGE ll. HULL.

Wit nesses:

lilUAN DUNNn,

ll. hlANNlNU. 

